document.write( "Question 241444: If you double a number and then add 12, you get one-half of the original number. What is the oringinal number? I tried this problem and my answer was 8, but i wasn't sure if it was correct. \n" ); document.write( "
Algebra.Com's Answer #176848 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 2X+12=X/2 CROSS MULTIPLY \n" ); document.write( "2(2X+12)=X \n" ); document.write( "4X+24=X \n" ); document.write( "4X-X=-24 \n" ); document.write( "3X=-24 \n" ); document.write( "X=-24/3 \n" ); document.write( "X=-8 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "2*-8+12=-8/2 \n" ); document.write( "-16+12=-4 \n" ); document.write( "-4=-4 \n" ); document.write( " \n" ); document.write( " |